Aerosol can clamping and rotating device and can lid fastening quality inspection equipment

Abstract

The present invention discloses an aerosol can clamping and rotating device, and discloses a can lid fastening quality detection device with an aerosol can clamping and rotating device. The aerosol can clamping and rotating device includes a bracket, a first support, a second support, a second pulley, a linear and rotary drive mechanism, etc. On the bracket, the first and second supports are slidable, the second support is provided with two support wheels, the first support has two first pulleys, and the area between the two can accommodate the aerosol can. The second pulley is connected to the first support by a tension spring to ensure that the transmission belt is tensioned. The linear drive mechanism controls the two supports to move closer or further away. When they move closer, the support wheels press against the aerosol can, and the transmission belt is concave and covered. The rotary drive mechanism drives the second pulley to rotate, thereby driving the aerosol can to rotate. The transmission belt of this device is in contact with the outer wall of the aerosol can, which can ensure the shooting accuracy and detection accuracy of the image detection device.

Description

Technical Field

[0001] The present invention relates to the technical field of aerosol can product production, in particular to an aerosol can clamping and rotating device and a can cover fastening quality detection device. Background Art

[0002] Can lid pressing equipment and can lid fastening quality inspection equipment are both commonly used equipment in aerosol can product production lines. Aerosol cans include a can body and a can lid. Can lid pressing equipment is a special equipment used to press the can lid onto the can body. It applies pressure to the can lid on the can body so that the can lid can be fastened to the can body to complete the press-fitting of the can lid. As a downstream device of the pressing equipment, the can lid fastening quality inspection equipment is used to detect whether the can lid is properly fastened to the can body to prevent the can lid and can body that are not fastened firmly from flowing into subsequent processing equipment. The can lid fastening quality inspection equipment usually includes an image detection device and an aerosol can clamping and rotating device. The aerosol can clamping and rotating device is used to clamp and drive the aerosol can to rotate. During the rotation of the aerosol can, the image detection device takes a picture of the fastening part of the can cover and the can body at a preset frame rate adapted to the rotation speed of the aerosol can, so that the image detection device can completely obtain the picture of the fastening part of the can cover and the can body; then the image detection device performs image recognition processing on the obtained picture to determine whether the can cover currently being inspected is properly fastened to the can body. In the prior art, reference Figure 1 The aerosol can gripping and rotating device includes a rotating wheel 20 and two supporting wheels 210. The rotating wheel 20 and the two supporting wheels 210 approach each other. After the rotating wheel 20 and the two supporting wheels 210 simultaneously grip the aerosol can 10, the rotating wheel 20 rotates to drive the aerosol can 10 to rotate. Because the rotating wheel 20 and the side wall of the aerosol can 10 are in line contact, the contact area between the rotating wheel 20 and the aerosol can 10 is small, which can easily cause the rotating wheel 20 to slip and make the aerosol can 10 unable to rotate stably, thereby affecting the image capture accuracy and detection accuracy of the image detection device. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an aerosol can clamping and rotating device that can stably rotate the aerosol can, thereby facilitating the image detection device to ensure the photographing accuracy and detection accuracy.

[0004] The present invention also provides a can lid fastening quality detection device having the above-mentioned aerosol can clamping and rotating device.

[0005] The aerosol can clamping and rotating device according to the first embodiment of the present invention includes a bracket, a second pulley, a linear drive mechanism, a rotation drive mechanism, and two first pulleys.

[0006] The two wheels are connected to each other with a first gear and a second gear, and the two wheels are connected with a first gear and a second gear and a second gear is connected with the first gear and the second gear is connected with the second gear.

[0007] It has at least the following beneficial effects:

[0008] When the aerosol can to be tested moves to the area between the two first pulleys and the two support wheels, the linear drive mechanism drives the first support and the second support to approach each other, so that the second pulley, the transmission belt and the two first pulleys on the first support all move toward the aerosol can, and also the two support wheels on the second support move toward the aerosol can. After the second support moves into place, the two support wheels can rest against the aerosol can, so that the two support wheels can support the aerosol can. For ease of explanation, the partial area of ​​the transmission belt between the two first pulleys is defined as the wrapping portion. In the process of the first support moving toward the aerosol can, the aerosol can first rest against the wrapping portion. As the first support continues to move and under the support of the two support wheels, the wrapping portion presses on the aerosol can and begins to sink inward, so that the wrapping portion is wrapped around the aerosol can, and the contact area between the wrapping portion and the aerosol can also gradually increases with the movement of the first support. As the wrapped portion dents inward, the tension in the transmission belt increases. Since the total length of the transmission belt remains unchanged, the second pulley, pulled by the transmission belt, moves toward the two first pulleys, allowing the transmission belt to deform smoothly. Because the tension spring consistently exerts a pulling force on the second pulley away from the two first pulleys, the belt maintains tension even after the wrapped portion dents inward, increasing the pressure between the wrapped portion and the aerosol can, effectively pressing the wrapped portion against the aerosol can.

[0009] After the first support and the second support are moved into position, the wrapped portion of the transmission belt is in an inwardly concave state and wrapped around the outer wall of the aerosol can. The rotary drive mechanism drives the second pulley to rotate, so that the second pulley drives the transmission belt to rotate, and then the transmission belt drives the aerosol can to rotate. During the rotation of the aerosol can, the image detection device can take a picture of the fastening point between the can lid and the can body and perform image recognition processing to determine whether the can lid currently being detected is properly fastened to the can body. The transmission belt and two supporting wheels in the aerosol can clamping rotation device can clamp the aerosol can, and the partial area of ​​the transmission belt between the two first pulleys is wrapped around the aerosol can, that is, the transmission belt is in surface contact with the outer wall of the aerosol can, which increases the contact area between the transmission belt and the outer wall of the aerosol can, avoids the transmission belt from slipping, and enables the can body and the can lid on the can body to rotate stably, which is conducive to ensuring the photographing accuracy and detection accuracy of the image detection device.

[0010] According to the aerosol can clamping and rotating device of the first aspect of the present invention, the rotation drive mechanism includes a motor and a transmission assembly, the motor is arranged on the bracket, the transmission assembly can be slidably connected to the first support so that the transmission assembly can approach or move away from the two first pulleys, the second pulley is connected to one end of the transmission assembly, and the other end of the transmission assembly is connected to the output end of the motor so that the motor drives the second pulley to rotate through the transmission assembly.

[0011] According to the aerosol can clamping and rotating device of the first aspect of the present invention, the transmission assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a shell, the first support is provided with a waist-shaped hole, the shell can be slidably connected to the first support so that the shell can approach or move away from the two first pulleys, one end of the first connecting rod is rotatably connected to the shell, the other end of the first connecting rod is inserted into the waist-shaped hole and connected to the second pulley, one end of the second connecting rod is rotatably connected to the shell, the other end of the second connecting rod is provided with a spline hole, one end of the first connecting rod and the second connecting rod is provided with a bevel gear, the two bevel gears are meshed with each other, one end of the third connecting rod is provided with a spline shaft, the spline shaft can be slidably inserted into the spline hole, and the other end of the third connecting rod is connected to the output end of the motor.

[0012] According to the aerosol can clamping and rotating device of the first embodiment of the present invention, the outer surface of the transmission belt is roughened.

[0013] According to the aerosol can clamping and rotating device of the first embodiment of the present invention, the distance between the two first pulleys is greater than the diameter of the aerosol can.

[0014] According to the aerosol can clamping and rotating device of the first aspect of the present invention, the linear drive mechanism includes a first cylinder and a second cylinder, the cylinder bodies of the first cylinder and the second cylinder are both connected to the bracket, the piston rods of the first cylinder and the second cylinder are respectively connected to the first support and the second support, and the first cylinder and the second cylinder are respectively used to drive the first support and the second support to approach or move away from each other.

[0015] According to the aerosol can clamping and rotating device of the first aspect of the present invention, it also includes two swing arms, one end of the two swing arms is hinged on the first support, the two first pulleys are rotatably connected to the other end of the two swing arms, the angle formed by the two swing arms is toward the two support wheels, and a torsion spring is connected between the two swing arms, and the torsion spring is used to force the two swing arms to move away from each other. When a partial area of ​​the transmission belt between the two first pulleys is recessed inward and wrapped around the aerosol can, the two first pulleys approach each other to increase the pressure between the partial area of ​​the transmission belt between the two first pulleys and the aerosol can.

[0016] According to the aerosol can clamping and rotating device of the first embodiment of the present invention, two arc guide grooves are provided on the first support, and guide posts are provided on the two swing arms, and the two guide posts extend into the two arc guide grooves respectively.

[0017] According to the second aspect of the present invention, the can lid fastening quality inspection device includes a frame, a conveying device, an image detection device and an aerosol can clamping and rotating device according to the first aspect of the present invention. The frame is provided with an inspection station, the conveying device, the image detection device and the aerosol can clamping and rotating device are all arranged on the frame, the image detection device and the aerosol can clamping and rotating device are both arranged at the inspection station, the conveying device is used to convey multiple bottles of aerosol cans so that the multiple bottles of aerosol cans are moved to the inspection station in sequence, the aerosol can clamping and rotating device is used to clamp and drive the aerosol can at the inspection station to rotate, and the image detection device is used to perform fastening inspection on the aerosol can at the inspection station.

[0018] At least the following beneficial effects are achieved: the can lid fastening quality inspection equipment has all the beneficial effects brought about by the above-mentioned aerosol can clamping and rotating device, which will not be repeated here.

[0019] The can lid fastening quality inspection device according to the second embodiment of the present invention further includes a bottle separation star wheel device, which is used to space the multiple aerosol cans on the conveying device apart from each other.

[0020] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0022] Figure 1 It is a structural schematic diagram of an aerosol can, a rotating wheel and two supporting wheels in the prior art;

[0023] Figure 2 Schematic diagram of the structure of the aerosol can holding and rotating device, the conveying device and the image detection device according to an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 It is a partial schematic diagram of the aerosol can clamping and rotating device;

[0026] Figure 5 is a schematic top view of the aerosol can, the first support, the second support, and the image detection device;

[0027] Figure 6 It is a structural schematic diagram of the aerosol can holding and rotating device from another perspective;

[0028] Figure 7 yes Figure 6 A partial enlarged view of point B in the middle;

[0029] Figure 8 is a schematic diagram of the bottom structure of the first support;

[0030] Figure 9 It is a schematic diagram of the internal structure of the transmission component;

[0031] Figure 10 is a structural schematic diagram of a first support, a first pulley and a swing arm in another embodiment;

[0032] Figure 11 is a schematic top view of a first support, a first pulley and a swing arm of another embodiment;

[0033] Figure 12 is a structural schematic diagram of an aerosol can, a first support, a first pulley and a swing arm in another embodiment;

[0034] Figure 13 is a top view schematically showing an aerosol can, a first support, a first pulley and a swing arm according to another embodiment;

[0035] Figure 14 It is a structural diagram of the can lid fastening quality inspection equipment;

[0036] Figure Number:

[0037] First support 100; first pulley 110; second pulley 120; transmission belt 130; swing arm 140; tension spring 150; circular arc guide groove 160; waist-shaped hole 170;

[0038] Second support 200; support wheel 210;

[0039] Rotation drive mechanism 300; motor 310; transmission assembly 320; first connecting rod 321; second connecting rod 322; third connecting rod 323; housing 324; bevel gear 325; spline shaft 326; fourth slide rail 330; fourth slider 340;

[0040] Linear drive mechanism 400; first cylinder 410; second cylinder 420;

[0041] Bracket 500;

[0042] Conveying device 600; image detection device 700; bottle separation star wheel device 800;

[0043] Aerosol can 10; can cover 11; can body 12; rotating wheel 20. DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0045] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] refer to Figures 2 to 8 The present invention discloses an aerosol can clamping and rotating device, including a bracket 500, a second pulley 120, a linear drive mechanism 400, a rotation drive mechanism 300 and two first pulleys 110.

[0048] The bracket 500 is slidably connected to the first support 100 and the second support 200, and the second support 200 is rotatably connected to two support wheels 210; the two first pulleys 110 are rotatably connected to the first support 100, and the area between the two first pulleys 110 and the two support wheels 210 is used to accommodate the aerosol can 10; the second pulley 120 is slidably connected to the first support 100 so that the second pulley 120 can approach or move away from the two first pulleys 110, and a transmission belt 130 is wound around the second pulley 120 and the two first pulleys 110, and a tension spring 150 is connected between the second pulley 120 and the first support 100, and the tension spring 150 is used to The linear drive mechanism 400 is used to apply a pulling force to the second pulley 120 away from the two first pulleys 110 so that the transmission belt 130 maintains tension; the linear drive mechanism 400 is used to drive the first support 100 and the second support 200 to approach or move away from each other. When the first support 100 and the second support 200 approach each other, the two support wheels 210 rest on the aerosol can 10, and a partial area of ​​the transmission belt 130 between the two first pulleys 110 is recessed inward and wrapped around the aerosol can 10, and the second pulley 120 is close to the two first pulleys 110; the rotary drive mechanism 300 is used to drive the second pulley 120 to rotate, so that the transmission belt 130 drives the aerosol can 10 to rotate.

[0049] As an embodiment of the present invention, the bracket 500 is provided with a first slide rail and a second slide rail both parallel to the left and right directions, and the first support 100 and the second support 200 are provided with a first slider and a second slider respectively. The first slider and the second slider are respectively slidably connected to the first slide rail and the second slide rail, so that the first support 100 and the second support 200 can move in the left and right directions, thereby allowing the first support 100 and the second support 200 to move closer to or farther away from each other. As an embodiment of the present invention, the linear drive mechanism 400 includes a first cylinder 410 and a second cylinder 420, the cylinder bodies of the first cylinder 410 and the second cylinder 420 are both connected to the bracket 500, and the piston rods of the first cylinder 410 and the second cylinder 420 are respectively connected to the first support 100 and the second support 200, and the first cylinder 410 and the second cylinder 420 are respectively used to drive the first support 100 and the second support 200 to move in the left and right directions, thereby allowing the first support 100 and the second support 200 to move closer to or farther away from each other. No further details will be given here. As an embodiment of the present invention, a third slide rail parallel to the left and right directions is provided on the first support 100, a third slider is slidably connected to the third slide rail, and the second pulley 120 is rotatably connected to the third slider, so that the second pulley 120 can slide on the third slide rail via the third slider, so that the second pulley 120 can move closer to or further away from the two first pulleys 110. One end of a tension spring 150 can be connected to the third slider, and the other end of the tension spring 150 can be connected to the first support 100, so that the tension spring 150 is used to apply a pulling force to the third slider away from the two first pulleys 110.

[0050] It should be explained that the reference Figure 8 , the tension spring 150 is always in a stretched state, that is, the tension spring 150 can always apply a pulling force to the second pulley 120 away from the two first pulleys 110, so that the second pulley 120 can always pull the transmission belt 130, and thus the transmission belt 130 can always maintain tension. The second pulley 120 is adaptively movable on the first support 100. When the tension of the transmission belt 130 increases due to the change in shape, the transmission belt 130 will pull the second pulley 120 toward the direction close to the two first pulleys 110. When the tension of the transmission belt 130 decreases due to the change in shape, the tension spring 150 will pull the second pulley 120 toward the direction away from the two first pulleys 110, so that the transmission belt 130 always maintains tension. It should be explained that the aerosol can clamping and rotating device is used in conjunction with the image detection device 700.

[0051] It is understood that when the aerosol can 10 to be inspected moves to the area between the two first pulleys 110 and the two support wheels 210, the linear drive mechanism 400 drives the first support 100 and the second support 200 toward each other, causing the second pulley 120, the transmission belt 130, and the two first pulleys 110 on the first support 100 to move toward the aerosol can 10, and also causing the two support wheels 210 on the second support 200 to move toward the aerosol can 10. After the second support 200 moves into position, the two support wheels 210 can rest against the aerosol can 10, so that the two support wheels 210 can provide support for the aerosol can 10. For ease of explanation, the portion of the transmission belt 130 between the two first pulleys 110 is defined as the wrapping portion.

[0052] As the first support 100 moves toward the aerosol can 10, the aerosol can 10 first contacts the wrapping portion. As the first support 100 continues to move and supported by the two support wheels 210, the wrapping portion presses against the aerosol can 10 and begins to sag inward, wrapping around the aerosol can 10. The contact area between the wrapping portion and the aerosol can 10 gradually increases as the first support 100 moves. As the wrapping portion sags inward, the tension in the transmission belt 130 increases. Because the total length of the transmission belt 130 remains unchanged, the second pulley 120, pulled by the transmission belt 130, moves toward the two first pulleys 110, allowing the transmission belt 130 to deform smoothly. Since the tension spring 150 can always apply a pulling force to the second pulley 120 away from the two first pulleys 110, the transmission belt 130 can still maintain tension after the wrapped portion of the transmission belt 130 is recessed inward, thereby increasing the pressure between the wrapped portion and the aerosol can 10, which is equivalent to the wrapped portion pressing on the aerosol can 10.

[0053] After the first support 100 and the second support 200 are moved into position, the wrapped portion of the transmission belt 130 is inwardly concave and wrapped around the outer wall of the aerosol can 10. The rotary drive mechanism 300 drives the second pulley 120 to rotate, causing the second pulley 120 to drive the transmission belt 130 to rotate, and the transmission belt 130 then drives the aerosol can 10 to rotate. During the rotation of the aerosol can 10, the image detection device 700 can take a picture of the fastening point between the can lid 11 and the can body 12 and perform image recognition processing to determine whether the can lid 11 currently being inspected is properly fastened to the can body 12. The transmission belt 130 and the two supporting wheels 210 in the aerosol can clamping and rotating device can clamp the aerosol can 10, and a partial area of ​​the transmission belt 130 between the two first pulleys 110 is wrapped around the aerosol can 10, that is, the transmission belt 130 is in surface contact with the outer wall of the aerosol can 10, which increases the contact area between the transmission belt 130 and the outer wall of the aerosol can 10, avoids the transmission belt 130 from slipping, and enables the can body 12 and the can cover 11 on the can body 12 to rotate stably, which is beneficial to ensuring the shooting accuracy and detection accuracy of the image detection device 700.

[0054] After completing the inspection of the fastening between the tank body 12 and the tank lid 11, the linear drive mechanism 400 drives the first support 100 and the second support 200 away from each other, causing the second pulley 120, the transmission belt 130, and the two first pulleys 110 on the first support 100 to move away from the aerosol can 10, and also causing the two support wheels 210 to move away from the aerosol can 10. As the transmission belt 130 moves away from the aerosol can 10, the wrapped portion of the transmission belt 130 gradually recovers its deformation outward under the pull of the second pulley 120, and the second pulley 120 returns to its original position. After the second pulley 120 returns to its original position, it can still pull the transmission belt 130, ensuring that the transmission belt 130 always maintains tension.

[0055] It should be explained that the reference Figures 5 to 7, in the process of the first support 100 and the second support 200 approaching each other, the two support wheels 210 on the second support 200 and the transmission belt 130 on the first support 100 simultaneously abut against the aerosol can 10. When the two support wheels 210 on the second support 200 abut against the aerosol can 10, the second support 200 stops moving. After the transmission belt 130 on the first support 100 abuts against the aerosol can 10, the first support 100 continues to move a preset distance, so that the partial area of ​​the transmission belt 130 between the two first pulleys 110 is concave inward and wrapped around the aerosol can 10, and then the first support 100 stops moving. The preset distance is set according to the diameter of the aerosol can 10. The larger the diameter of the aerosol can 10, the larger the preset distance, and the smaller the diameter of the aerosol can 10, the smaller the preset distance. No further details will be given here. In an embodiment of the present invention, the second pulley 120 and the two first pulleys 110 are both synchronous pulleys, and the transmission belt 130 is a synchronous belt. It should be explained that, in the embodiment of the present invention, the transmission belt 130 and the two supporting wheels 210 are in contact with the tank body 12 of the aerosol can 10 .

[0056] In the embodiment of the present invention, reference Figure 5 The distance between the two first pulleys 110 is greater than the diameter of the aerosol can 10. Specifically, the distance between the two first pulleys 110 is greater than the diameter of the can body 12. It is understood that during the process of the transmission belt 130 wrapping around the aerosol can 10, because the distance between the two first pulleys 110 is greater than the diameter of the aerosol can 10, the two first pulleys 110 will not abut against the aerosol can 10 through the transmission belt 130, thereby preventing line contact between the first pulleys 110 and the aerosol can 10, ensuring that the transmission belt 130 and the aerosol can 10 are always in surface contact, preventing the transmission belt 130 from slipping, and allowing the aerosol can 10 to rotate stably. In this embodiment of the present invention, the two first pulleys 110 are symmetrically arranged.

[0057] refer to Figure 4 、 Figure 6 and Figure 8The rotation drive mechanism 300 includes a motor 310 and a transmission assembly 320. The motor 310 is disposed on the bracket 500. The transmission assembly 320 is slidably connected to the first support 100 so that the transmission assembly 320 can move closer to or further away from the two first pulleys 110. The second pulley 120 is connected to one end of the transmission assembly 320, and the other end of the transmission assembly 320 is connected to the output end of the motor 310 so that the motor 310 drives the second pulley 120 to rotate through the transmission assembly 320. It is understood that the motor 310 can drive the second pulley 120 to rotate through the transmission assembly 320. The transmission assembly 320 is slidably connected to the first support 100, and the second pulley 120 is connected to one end of the transmission assembly 320. Therefore, the second pulley 120 is slidably connected to the first support 100 through the transmission assembly 320. When the wrapped portion of the transmission belt 130 is concave inward, the transmission assembly 320 and the second pulley 120 move toward the two first pulleys 110; when the wrapped portion of the transmission belt 130 recovers its deformation outward, the transmission assembly 320 and the second pulley 120 move in a direction away from the two first pulleys 110.

[0058] refer to Figure 8 and Figure 9The transmission assembly 320 includes a first connecting rod 321, a second connecting rod 322, a third connecting rod 323 and a shell 324. The first support 100 is provided with a waist-shaped hole 170, and the shell 324 can be slidably connected to the first support 100 so that the shell 324 can approach or move away from the two first pulleys 110. One end of the first connecting rod 321 is rotatably connected to the shell 324, and the other end of the first connecting rod 321 is passed through the waist-shaped hole 170 and connected to the second pulley 120. One end of the second connecting rod 322 is rotatably connected to the shell 324, and the other end of the second connecting rod 322 is provided with a spline hole. One end of the first connecting rod 321 and the second connecting rod 322 is provided with a bevel gear 325, and the two bevel gears 325 mesh with each other. One end of the third connecting rod 323 is provided with a spline shaft 326, which can be slidably inserted into the spline hole, and the other end of the third connecting rod 323 is connected to the output end of the motor 310. In the embodiment of the present invention, the waist-shaped hole 170, the second connecting rod 322, the third connecting rod 323, and the spline shaft 326 are all parallel to the left-right direction, and the second connecting rod 322, the third connecting rod 323, and the spline shaft 326 are all coaxially arranged, and the first connecting rod 321 is parallel to the up-down direction. It is understood that the spline shaft 326 can be slidably inserted into the spline hole on the other end of the second connecting rod 322. The motor 310 drives the third connecting rod 323 and the spline shaft 326 on the third connecting rod 323 to rotate, so that the spline shaft 326 drives the second connecting rod 322 and the bevel gear 325 on the second connecting rod 322 to rotate. Since one end of the first connecting rod 321 and the second connecting rod 322 is provided with a bevel gear 325 that meshes with each other, the first connecting rod 321 and the bevel gear 325 on the first connecting rod 321 can rotate, thereby causing the first connecting rod 321 to drive the second pulley 120 to rotate.

[0059] As the wrapped portion of the transmission belt 130 sinks inward, the transmission belt 130 pulls the second pulley 120 toward the two first pulleys 110. Since the shell 324 is slidingly connected to the first support 100, the second pulley 120, the first connecting rod 321, the second connecting rod 322, the shell 324 and the two bevel gears 325 can simultaneously move toward the direction approaching the two first pulleys 110; in the process of the transmission belt 130 moving away from the aerosol can 10, under the pulling action of the tension spring 150, the second pulley 120, the first connecting rod 321, the second connecting rod 322, the shell 324 and the two bevel gears 325 can simultaneously move toward the direction away from the two first pulleys 110. During the simultaneous movement of the second pulley 120, the first connecting rod 321, the second connecting rod 322, the housing 324, and the two bevel gears 325, the spline shaft 326 at one end of the third connecting rod 323 can be constantly inserted into the spline hole at the other end of the second connecting rod 322, so that the spline shaft 326 at one end of the third connecting rod 323 can constantly drive the second connecting rod 322 to rotate, thereby enabling the second pulley 120 to drive the transmission belt 130 to rotate during its movement. In this embodiment of the present invention, a fourth slide rail 330 parallel to the left-right direction is provided on the lower surface of the first support 100. The fourth slide rail 330 is slidably connected to a fourth slider 340. The housing 324 is detachably connected to the fourth slider 340. One end of the tension spring 150 is connected to the fourth slider 340, and the other end of the tension spring 150 is connected to the first support 100.

[0060] In the embodiment of the present invention, reference Figure 9 The housing 324 is L-shaped, and a first bearing and a second bearing are provided in the housing 324. The outer ring of the first bearing is connected to the inner wall of the housing 324, and one end of the first connecting rod 321 is connected to the inner ring of the first bearing to achieve a rotational connection between the first connecting rod 321 and the housing 324; the outer ring of the second bearing is connected to the inner wall of the housing 324, and one end of the second connecting rod 322 is connected to the inner ring of the second bearing to achieve a rotational connection between the second connecting rod 322 and the housing 324. No further details will be given here. Figure 9 In the embodiment of the present invention, the housing 324 is composed of a detachable first half and a second half to facilitate the installation of the first connecting rod 321, the second connecting rod 322, the first bearing and the second bearing, which will not be further described here.

[0061] In an embodiment of the present invention, the outer surface of the transmission belt 130 is roughened so that the outer surface of the transmission belt 130 is rough, so as to increase the friction between the transmission belt 130 and the outer wall of the aerosol can 10, and further eliminate the possibility of the transmission belt 130 slipping. Roughening is a common method of increasing friction, which will not be further described here. In an embodiment of the present invention, the outer walls of the two support wheels 210 are both covered with anti-skid rubber sleeves to avoid slipping between the support wheels 210 and the aerosol can 10. The anti-skid rubber sleeves are common anti-skid parts, which will not be further described here. In an embodiment of the present invention, the aerosol can 10 is clamped by the transmission belt 130 and the support wheel 210 covered with the anti-skid rubber sleeves at the same time, which effectively avoids the tank body 12 of the aerosol can 10 from being pinched.

[0062] As another embodiment of the present invention, refer to Figures 10 to 13 The aerosol can clamping and rotating device also includes two swing arms 140, one end of which is hinged on the first support 100, and the two first pulleys 110 are respectively rotatably connected to the other end of the two swing arms 140. The angle formed by the two swing arms 140 is toward the two supporting wheels 210. A torsion spring (not shown in the figure) is connected between the two swing arms 140. The torsion spring is used to apply a thrust to the two swing arms 140 to move away from each other. When a partial area of ​​the transmission belt 130 between the two first pulleys 110 is concave inward and wrapped around the aerosol can 10, the two swing arms 140 approach each other to increase the pressure between the partial area of ​​the transmission belt 130 between the two first pulleys 110 and the aerosol can 10. In this embodiment of the present invention, one end of each swing arm 140 is hinged to the first support 100 via a hinge shaft. That is, one end of each swing arm 140 shares a common hinge shaft. A torsion spring is mounted on the hinge shaft, and its two legs are connected to the two swing arms 140, respectively. This allows the torsion spring to constantly apply a force to the two swing arms 140 that pushes them away from each other, forcing them to move away from each other. The connection method between the torsion spring and the two swing arms 140 is relatively common and will not be further described here.

[0063] It is understandable that when the aerosol can 10 to be detected moves to the area between the two first pulleys 110 and the two support wheels 210, the linear drive mechanism 400 drives the first support 100 and the second support 200 to approach each other. After the second support 200 moves into place, the two support wheels 210 can abut against the aerosol can 10. In the process of the first support 100 moving toward the aerosol can 10, the aerosol can 10 first abuts against the wrapping portion. As the first support 100 continues to move and under the support of the two support wheels 210, the wrapping portion is pressed against the aerosol can 10 and begins to sag inward, so that the wrapping portion is wrapped around the aerosol can 10. In the process of the wrapping portion sags inward, the transmission belt 130 forces the two swing arms 140 to approach each other, so that the two first pulleys 110 approach each other, the torsion spring is compressed, and the second pulley 120 moves in the direction close to the two first pulleys 110. When the wrapped portion of the transmission belt 130 is in an inwardly concave state and wrapped around the outer wall of the aerosol can 10, the torsion spring always applies a pushing force to the two swing arms 140 to move away from each other. Therefore, the two first pulleys 110 tend to move away from each other under the action of the torsion spring, so that the tension of the transmission belt 130 is further increased, and the pressure between the wrapped portion of the transmission belt 130 and the aerosol can 10 is further increased.

[0064] After the first support 100 and the second support 200 are moved into position, the rotary drive mechanism 300 drives the second pulley 120 to rotate, causing the second pulley 120 to drive the transmission belt 130 to rotate, and then the transmission belt 130 drives the aerosol can 10 to rotate. When the wrapped portion of the transmission belt 130 is wrapped around the aerosol can 10, under the action of the torsion spring and the two swing arms 140, the two first pulleys 110 tend to move away from each other, which is equivalent to the two first pulleys 110 simultaneously pulling the wrapped portion of the transmission belt 130 outward, forcing the wrapped portion of the transmission belt 130 to recover its deformation outward, further increasing the pressure between the wrapped portion of the transmission belt 130 and the aerosol can 10, eliminating the possibility of slippage between the transmission belt 130 and the aerosol can 10, ensuring the stable rotation of the can body 12 and the can lid 11 on the can body 12, and ensuring the photographing accuracy and detection accuracy of the image detection device 700.

[0065] After completing the inspection of the fastening point between the tank body 12 and the tank lid 11, the linear drive mechanism 400 drives the first support 100 and the second support 200 away from each other. As the transmission belt 130 moves away from the aerosol can 10, the wrapped portion of the transmission belt 130 gradually recovers its deformation outward. Under the action of the torsion spring, the two swing arms 140 move away from each other and reset, and the two first pulleys 110 move away from each other and reset. Under the action of the tension spring 150, the second pulley 120 gradually moves away from the two first pulleys 110 and resets. In another embodiment of the present invention, the wrapped portion of the transmission belt 130 is concave inward and wrapped around the outer wall of the aerosol can 10, and the two first pulleys 110 will not collide with the aerosol can 10 through the transmission belt 130.

[0066] refer to Figure 11 and Figure 13 , two arc guide grooves 160 are provided on the first support 100, and guide posts are provided on the two swing arms 140, and the two guide posts extend into the two arc guide grooves 160 respectively. It can be understood that the guide posts on the two swing arms 140 extend into the two arc guide grooves 160 on the first support 100 respectively, and the guide posts can abut against the inner walls of the arc guide grooves 160, so that the guide posts can guide the swinging process of the swing arms 140, thereby allowing the two first pulleys 110 to move smoothly. When the transmission belt 130 does not abut against the aerosol can 10, under the pushing action of the torsion spring, the two guide posts are respectively pressed against the inner side walls of the two arc guide grooves 160 on the opposite sides, so that the positions of the two swing arms 140 on the first support 100 are fixed. Specifically, when the transmission belt 130 does not abut against the aerosol can 10, the distance between the two first pulleys 110 is greater than the diameter of the aerosol can 10. The two swing arms 140 are symmetrically arranged, and the two arc guide grooves 160 are symmetrically arranged.

[0067] refer to Figure 14 The present invention also discloses a can lid fastening quality inspection device, comprising a frame, a conveying device 600, an image detection device 700, and an aerosol can clamping and rotating device. The frame is provided with an inspection station. The conveying device 600, the image detection device 700, and the aerosol can clamping and rotating device are all mounted on the frame. The image detection device 700 and the aerosol can clamping and rotating device are both located at the inspection station. The conveying device 600 is used to transport multiple aerosol cans 10 so that the multiple aerosol cans 10 are sequentially moved to the inspection station. The aerosol can clamping and rotating device is used to clamp and rotate the aerosol cans 10 at the inspection station. The image detection device 700 is used to perform fastening inspection on the aerosol cans 10 at the inspection station. The first support 100 and the second support 200 of the aerosol can clamping and rotating device are respectively located on either side of the inspection station. The conveying device 600 is used to convey the aerosol can 10 from back to front, so that the aerosol can 10 can be moved to the inspection station in sequence, so that the aerosol can clamping and rotating device can clamp and drive the aerosol can 10 at the inspection station to rotate, and then the image detection device 700 can detect the fastening part of the aerosol can 10 at the inspection station.

[0068] The conveying device 600 is a common crawler-type transport device, and the image detection device 700 is a common industrial camera detection device, which will not be further described here. The can lid fastening quality inspection equipment also includes a common bottle separation star wheel device 800, which is arranged behind the aerosol can clamping and rotating device. The bottle separation star wheel device 800 is used to space the multiple bottles of aerosol cans 10 on the conveying device 600 from each other, which will not be further described here. In an embodiment of the present invention, the can lid fastening quality inspection equipment is used in conjunction with a sorting robot. When the image detection device 700 detects that the can lid 11 is unqualifiedly fastened to the can body 12, the sorting robot will remove the aerosol can 10 at the inspection station to prevent the can lid 11 and can body 12 that are not fastened firmly from flowing into the subsequent processing equipment. This will not be further described here.

[0069] It should be explained that when the can cover 11 is tilted or there is a large gap between the can cover 11 and the can body 12, etc., it means that the can cover 11 is not fastened firmly. When the above situations occur, the image detection device 700 will determine that the can cover 11 at the current inspection station is fastened to the can body 12 in an unqualified manner, and the sorting robot will take away the can cover 11 and the can body 12 at the inspection station.

[0070] It should be explained that the image detection device 700 takes a picture of the fastening point between the can lid 11 and the can body 12 according to a preset frame rate, and the preset frame rate is set based on the rotation speed of the aerosol can 10 to ensure that the image detection device 700 can take a picture of the fastening point at the right time during the rotation of the aerosol can 10, thereby completely obtaining a picture of the fastening point. When the aerosol can 10 cannot rotate stably, its actual rotation speed will fluctuate and no longer match the preset frame rate. This will cause the timing of the image detection device 700 taking pictures to deviate. It may take a picture before the fastening point has rotated to the appropriate position, or take a picture after the fastening point has rotated a certain angle, thereby making it impossible for the photographed picture to fully present the full picture of the fastening point. There are cases where some areas are not photographed, thus affecting the photographing accuracy of the image detection device 700. When the photographing accuracy of the image detection device 700 cannot be guaranteed, the accuracy of the image recognition processing will also be impaired. Blurred or incomplete images make it difficult for the image detection device 700 to identify the true features of the fastening joint, potentially misjudging a normal fastening as unqualified or missing actual fastening defects, resulting in distorted detection results. Therefore, when the aerosol can 10 cannot rotate stably, the image detection device 700's photographic accuracy and detection accuracy are affected.

[0071] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0072] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Aerosol can clamping and rotating device, characterized in that: include: The bracket is slidably connected to a first support and a second support, and the second support is rotatably connected to two support wheels; Two first pulleys are rotatably connected to the first support, and the area between the two first pulleys and the two support wheels is used to accommodate the aerosol can; a second pulley, slidably connected to the first support so that the second pulley can approach or move away from the two first pulleys, a transmission belt is wound around the second pulley and the two first pulleys, a tension spring is connected between the second pulley and the first support, the tension spring is used to apply a pulling force to the second pulley away from the two first pulleys, so that the transmission belt maintains tension; a linear drive mechanism for driving the first support and the second support toward or away from each other, wherein when the first support and the second support approach each other, the two support wheels abut against the aerosol can, a portion of the transmission belt between the two first pulleys is recessed inward and covers the aerosol can, and the second pulley approaches the two first pulleys; The rotary drive mechanism is used to drive the second pulley to rotate, so that the transmission belt drives the aerosol can to rotate.

2. The aerosol can holding and rotating device according to claim 1, characterized in that: The rotary drive mechanism includes a motor and a transmission assembly, the motor is arranged on the bracket, the transmission assembly can be slidably connected to the first support so that the transmission assembly can approach or move away from the two first pulleys, the second pulley is connected to one end of the transmission assembly, and the other end of the transmission assembly is connected to the output end of the motor so that the motor drives the second pulley to rotate through the transmission assembly.

3. The aerosol can holding and rotating device according to claim 2, characterized in that: The transmission assembly includes a first connecting rod, a second connecting rod, a third connecting rod and a housing. The first support is provided with a waist-shaped hole. The housing can be slidably connected to the first support so that the housing can approach or move away from the two first pulleys. One end of the first connecting rod is rotatably connected to the housing. The other end of the first connecting rod is inserted into the waist-shaped hole and connected to the second pulley. One end of the second connecting rod is rotatably connected to the housing. The other end of the second connecting rod is provided with a spline hole. One end of the first connecting rod and the second connecting rod is provided with a bevel gear, and the two bevel gears are meshed with each other. One end of the third connecting rod is provided with a spline shaft, and the spline shaft can be slidably inserted into the spline hole. The other end of the third connecting rod is connected to the output end of the motor.

4. The aerosol can holding and rotating device according to claim 1, characterized in that: The outer surface of the transmission belt is roughened.

5. The aerosol can holding and rotating device according to claim 1, characterized in that: The distance between the two first pulleys is greater than the diameter of the aerosol can.

6. The aerosol can holding and rotating device according to claim 1, characterized in that: The linear drive mechanism includes a first cylinder and a second cylinder, the cylinder bodies of the first cylinder and the second cylinder are both connected to the bracket, the piston rods of the first cylinder and the second cylinder are respectively connected to the first support and the second support, and the first cylinder and the second cylinder are respectively used to drive the first support and the second support towards or away from each other.

7. The aerosol can holding and rotating device according to claim 1, characterized in that: It also includes two swing arms, one end of each of the two swing arms is hinged on the first support, and the two first pulleys are rotatably connected to the other end of the two swing arms, and the angle formed by the two swing arms is toward the two support wheels. A torsion spring is connected between the two swing arms, and the torsion spring is used to force the two swing arms to move away from each other. When a partial area of ​​the transmission belt between the two first pulleys is recessed inward and wrapped around the aerosol can, the two first pulleys approach each other to increase the pressure between the partial area of ​​the transmission belt between the two first pulleys and the aerosol can.

8. The aerosol can holding and rotating device according to claim 7, characterized in that: Two arc guide grooves are provided on the first support, and guide posts are provided on the two swing arms. The two guide posts extend into the two arc guide grooves respectively. 9.Can lid fastening quality inspection equipment, characterized in that, It comprises a frame, a conveying device, an image detection device and the aerosol can clamping and rotating device according to any one of claims 1 to 8, wherein the frame is provided with a detection station, the conveying device, the image detection device and the aerosol can clamping and rotating device are all arranged on the frame, the image detection device and the aerosol can clamping and rotating device are both arranged at the detection station, the conveying device is used to convey multiple aerosol cans so that the multiple aerosol cans are moved to the detection station in sequence, and the aerosol can clamping and rotating device is used to clamp and drive the aerosol can at the detection station to rotate.

10. The can lid fastening quality inspection device according to claim 9, characterized in that: It also includes a bottle-distributing star wheel device, which is used to space the multiple aerosol cans on the conveying device apart from each other.

Images